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Show Key elements of Phase I will be a review of the state of the art of coal-liquid mixture burner technology and recommendation of the most promising burner concepts for coal-water mixture firing for each boiler configuration. Full scale burners will then be designed and tested prior to installation in the units at Chatham NB. Phase II: This phase will be to assess burner and boiler performance when firing coal-water mixtures in front-wall and tangentially fired boilers, with special emphasis on reliability of equipment. It is anticipated that 6000 tonnes of fuel will be prepared for the performance trials, 2000 tonnes for Unit No. 1 and 4000 tonnes for Unit No. 2. The fuel will contain less than 2 percent ash and be similar to that used in Phase I for burner development. The Phase II performance trials are currently scheduled for the Spring of 1983. It is expected that these two phases should lead to the scale-up and testing of burners for demonstrations of coal-water mixture technology in oil-designed utility boilers in the 50 to 150 MW(e) capacity range and of both basic configurations typical of eastern Canada. During the last five decades, coal has been considered as a possible fuel for diesel engines. This interest has usually been moderated by the fact that until fairly recently, the availability of relatively cheap diesel fuel together with its ease of use has made other fuels, unattractive. For the same reasons that coal-liquid mixtures are now receiving attention as industrial and utility fuels, a coal-based diesel fuel becomes more attractive. Chemically processed coal-derived fuels are very costly and some attention is now being given in Canada to mixtures of very clean coal and diesel fuel as a means of reducing the consumption of expensive refined petroleum products in diesel engines. Obviously high speed diesel engines are unsuitable for coal-liquid mixtures, but the low and medium speed 12-15 |